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Light Speed

Can light go faster, or slower, than light speed? If so, what do we call that speed?

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  • Asked by jminton
  • on 2009-08-08 04:22:48
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Last edited on: 2009-08-08 04:25:09

Categories: Our universe.

Tags: physics, light, Speedoflight.

 

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Is faster than light communication possible??

Using a pole which is 1 light year long and with a person at each end of the pole who is able to push the pole so that it hits against a plate on the opposing end. Would it be possible for them to communicate using morse code and would the message be transmitted faster than the speed of light ??

I know the pole doesnt necessarily need to be that long but its a good example.

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  • Asked by haydn
  • on 2009-07-30 23:05:28
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Categories: Domestic Science.

Tags: Speedoflight, faster.

 

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What would warp speed actually look like?

I've seen many CG fly-through videos of stars and galaxies which provide awe-inspiring viewing. Watch just about any episode of Star Trek too and you will see stars rushing by at warp speed. Obviously in the former example, no object could travel as fast the hypothetical speeds of the 'viewer' in these videos (unless we could assume it's a slide-show of instantaneous transporting from one point to another), and in the latter warp speed has yet to be achieved. But I was wondering what warp speed would actually look like? If stars and galaxies are emitting light that has taken vastly different periods of time to reach one point in the universe, how would it look to the person travelling at warp speed if he or she were traversing these 'points' at much faster speeds than light? (Assuming that light can be seen at warp speed.)For example, if we were to somehow "travel" (our slide-show of instantaneous transporting from one 'slide' to another) so fast that we could reach our nearest galaxy, Andromeda, within an hour, we would surely see it evolve at an unprecedented rate since each point on our path we would be reaching light emitted nearer the present. If we take this example and apply it to those CG fly-through videos, would we -in effect- be traveling through time as well as space? Would we see objects in front of us evolve and objects that have passed us de-evolve? (Again, if we assume we are travelling through space as though we were flicking through a slideshow rather than actual motion where I'm sure Einstein's special theory of relativity would have something to say on the matter.)

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Last edited on: 2009-07-24 20:23:21

Categories: Our universe.

Tags: Universe, Speedoflight, Galaxy, Warp.

 

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